Preheat oven to 350°F. Coat an 8-inch-square pan with cooking spray and set aside. Spread the oats, almonds, sunflower seeds, flax seeds and sesame seeds on a large rimmed baking sheet. Bake for 5 minutes, shake the pan, then bake for an additional 5 minutes. Transfer the baked ingredients to a large mixing bowl. Add cereal, currants, apricots and raisins and mix well. Set aside. Place butter, sugar, honey, vanilla and salt in a small saucepan. Heat the ingredients over medium-low heat, stirring constantly, until the mixture begins to bubble. Immediately pour the mixture over the dry ingredients and mix until all ingredients are moistened. Press the mixture into the prepared baking pan and chill until firm. Cut into 8 bars.